Hydraulics & Fluid Mechanics According to Bernoulli’s equation for steady ideal fluid flow principle of conservation of mass holds total energy is constant throughout the energy is constant along a stream-line but may vary across streamlines velocity and pressure are inversely proportional principle of conservation of mass holds total energy is constant throughout the energy is constant along a stream-line but may vary across streamlines velocity and pressure are inversely proportional ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics Drag force is a function of i) projected area of the body ii) mass density of the fluid iii) velocity of the body The correct answer is (i) and (ii) (ii) and (iii) (i), (ii) and (iii) (i) and (iii) (i) and (ii) (ii) and (iii) (i), (ii) and (iii) (i) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics A model of torpedo is tested in a towing tank at a velocity of 25 m/sec. The prototype is expected to attain a velocity of 5 m/sec. What model scale has been used ? 1 :25 1 : 5 1 : 2.5 1:50 1 :25 1 : 5 1 : 2.5 1:50 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics Mercury is often used in barometer because the height of barometer will be less it is the best liquid its vapour pressure is so low that it may be neglected both (B) and (C) the height of barometer will be less it is the best liquid its vapour pressure is so low that it may be neglected both (B) and (C) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics The difference of pressure between the inside and outside of a liquid drop is (a)p = Txr (b)p = T/r (d)p = 2T/r p = T/2r (a)p = Txr (b)p = T/r (d)p = 2T/r p = T/2r ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics The Prartdtl mixing length is independent of shear stress None of these maximum at the pipe wall zero at the pipe wall independent of shear stress None of these maximum at the pipe wall zero at the pipe wall ANSWER DOWNLOAD EXAMIANS APP
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